{"id":514597,"date":"2023-01-03T19:00:49","date_gmt":"2023-01-04T00:00:49","guid":{"rendered":"https:\/\/wncen.com\/?p=514597"},"modified":"2023-03-08T07:26:34","modified_gmt":"2023-03-08T07:26:34","slug":"uniswap-saved-vulnerability-security-firm","status":"publish","type":"post","link":"https:\/\/wncen.com\/news\/uniswap\/uniswap-saved-vulnerability-security-firm\/","title":{"rendered":"How Uniswap Was Saved From Critical Vulnerability By This Security Firm"},"content":{"rendered":"<p><strong><span data-preserver-spaces=\"true\">Security firm Dedaub <a href=\"https:\/\/media.dedaub.com\/uniswap-bug-bounty-1625d8ff04ae\" target=\"_blank\" rel=\"noopener nofollow\">discovered<\/a> and disclosed a critical vulnerability on the popular Ethereum decentralized exchange Uniswap. The team behind the protocol fixed the bug, and the affected components were successfully redeployed\u2014otherwise, an attacker could have tempered with transactions to steal a user\u2019s funds.\u00a0<\/span><\/strong><\/p>\n<div class=\"related-reading-shortcode\">Related Reading: <a href=\"https:\/\/wncen.com\/news\/litecoin-up-by-7\/\" target=\"_blank\" rel=\"noopener \">Ol\u2019 Reliable Litecoin Up By 7% As LTC Flexes Muscles For 2023<\/a><\/div>\n<h2>Uniswap Avoids Danger And Fixes New Features<\/h2>\n<p><span data-preserver-spaces=\"true\">According to the security firm, the vulnerability was unintentionally implemented with the Universal Router. This component allows Uniswap users to trade ERC-20 tokens and non-fungible tokens \u201cinto a single swap router.\u201d<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">In other words, Uniswap users can optimize their operations and trade multiple tokens and NFTs in a single transaction, saving time and money. This new component also allows users to transfer funds to third parties.\u00a0<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">When the vulnerability was in-placed, a user could send a transaction to a third party, and the latter could have gained access to the sender\u2019s funds. Dedaub explained the following:<\/span><\/p>\n<blockquote><p>(\u2026) if third-party code is invoked at any point in the transfer (which manifests itself due to composition of protocols), the code can reenter the UniversalRouter and claim any tokens temporarily in the contract (\u2026). The attacker also needs to implement code to reenter the router (calling execute) and sweep all token amounts. The router may contain funds mid-transaction due to other actions and transfers in a complex swap.<\/p><\/blockquote>\n<p><span data-preserver-spaces=\"true\">The Universal Router hold the sender\u2019s funds while the transaction is completed. While this happened, the funds were vulnerable, and a bad actor could drain them by calling specific commands such as \u201cdispatch\u201d with a \u201c.TRANSFER\u201d or. \u201c.SWEEP.\u201d<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">The vulnerability could have allowed a bad actor to \u201cre-entered\u201d a transaction using this command. Once inside, the attacker could have been able to \u201cdrain the entire amount\u201d from the sender\u2019s wallet.\u00a0<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">The security firm added the following on the \u201cendless scenarios\u201d where the vulnerability could have been exploited:<\/span><\/p>\n<blockquote><p>If untrusted code is invoked at any point in the transfer, the code can re-enter the UniversalRouter and claim any tokens already in the UniversalRouter contract. Such tokens can, for instance, exist because the user intends to later buy an NFT, or transfer tokens to a second recipient, or because the user swaps a larger amount than needed and intends to \u201csweep\u201d the remainder to themselves at the end of the UniversalRouter call. And there is no shortage of scenarios in which an untrusted recipient may be called (\u2026).<\/p><\/blockquote>\n<h3>Ethereum DEX Grants $3 Million In Bug Bounty<\/h3>\n<p><span data-preserver-spaces=\"true\">In December 2022, Uniswap launched the Universal Router as part of their new NFT compatibility. At that time, Uniswap Labs announced a $3 million bounty program. Dedaub was granted this amount for their bug report on the new component.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">The firm celebrated the reward and the fact that a bad actor never exploited the vulnerability. In addition, the security firm was \u201cthe only bug report that Uniswap acted upon.\u201d\u00a0<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">2022 was a troublesome year for crypto and risk-on assets, while macroeconomic forces played against the nascent sector. Users experienced hurdles beyond declining prices as hackers and bad actors took billions from the industry.\u00a0<\/span><\/p>\n<figure id=\"attachment_514604\" aria-describedby=\"caption-attachment-514604\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-514604 size-large\" src=\"https:\/\/wncen.com\/wp-content\/uploads\/2023\/01\/Uniswap-UNI-UNIUSDT.jpg?resize=860%2C546\" alt=\"Uniswap UNI UNIUSDT\" width=\"860\" height=\"546\"><figcaption id=\"caption-attachment-514604\" class=\"wp-caption-text\">Source: Chainalysis<\/figcaption><\/figure>\n<p><span data-preserver-spaces=\"true\">Data from <a href=\"https:\/\/blog.chainalysis.com\/reports\/crypto-main-street\/\" target=\"_blank\" rel=\"noopener nofollow\">on-chain analytics firm Chainalysis claims<\/a> that bad actors have received over $26 billion in cryptocurrency from 2017 to 2021 alone. It remains to be seen if 2023 will extend or mitigate this trend.\u00a0<\/span><\/p>\n<figure id=\"attachment_514605\" aria-describedby=\"caption-attachment-514605\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-514605 size-large\" src=\"https:\/\/wncen.com\/wp-content\/uploads\/2023\/01\/Uniswap-UNI-UNIUSDT.png?resize=860%2C376\" alt=\"Uniswap UNI UNIUSDT\" width=\"860\" height=\"376\"><figcaption id=\"caption-attachment-514605\" class=\"wp-caption-text\">UNI&#8217;s price moving sideways on the daily chart. Source: <a href=\"https:\/\/www.tradingview.com\/chart\/Ftrtg0Wu\/?symbol=BINANCE%3AUNIUSDT\" target=\"_blank\" rel=\"noopener nofollow\"><strong>UNIUSDT Tradingview<\/strong><\/a><\/figcaption><\/figure>\n<div class=\"related-reading-shortcode\">Related Reading: <a href=\"https:\/\/wncen.com\/news\/bitcoin\/bitcoin-ethereum-lack-volumes-santiment\/\" target=\"_blank\" rel=\"noopener \">Bitcoin, Ethereum Lack Volumes To Justify Caps, Says Santiment<\/a><\/div>\n<p><span data-preserver-spaces=\"true\">As of this writing, UNI&#8217;s price trades at $5.70 with sideways movement on the daily chart.\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Security firm Dedaub discovered and disclosed a critical vulnerability on the popular Ethereum decentralized exchange Uniswap. The team behind the protocol fixed the bug, and the affected components were successfully redeployed\u2014otherwise, an attacker could have tempered with transactions to steal a user\u2019s funds.\u00a0 Related Reading: Ol\u2019 Reliable Litecoin Up By 7% As LTC Flexes Muscles For 2023 Uniswap Avoids Danger And Fixes New Features According to the security firm, the vulnerability was unintentionally implemented with the Universal Router. This component allows Uniswap users to trade ERC-20 tokens and non-fungible tokens \u201cinto a single swap router.\u201d In other words, Uniswap users can optimize their operations and trade multiple tokens and NFTs in a single transaction, saving time and money. This new component also allows users to transfer funds to third parties.\u00a0 When the vulnerability was in-placed, a user could send a transaction to a third party, and the latter could have gained access to the sender\u2019s funds. Dedaub explained the following: (\u2026) if third-party code is invoked at any point in the transfer (which manifests itself due to composition of protocols), the code can reenter the UniversalRouter and claim any tokens temporarily in the contract (\u2026). The attacker also needs to implement code to reenter the router (calling execute) and sweep all token amounts. The router may contain funds mid-transaction due to other actions and transfers in a complex swap. The Universal Router hold the sender\u2019s funds while the transaction is completed. While this happened, the funds were vulnerable, and a bad actor could drain them by calling specific commands such as \u201cdispatch\u201d with a \u201c.TRANSFER\u201d or. \u201c.SWEEP.\u201d The vulnerability could have allowed a bad actor to \u201cre-entered\u201d a transaction using this command. Once inside, the attacker could have been able to \u201cdrain the entire amount\u201d from the sender\u2019s wallet.\u00a0 The security firm added the following on the \u201cendless scenarios\u201d where the vulnerability could have been exploited: If untrusted code is invoked at any point in the transfer, the code can re-enter the UniversalRouter and claim any tokens already in the UniversalRouter contract. Such tokens can, for instance, exist because the user intends to later buy an NFT, or transfer tokens to a second recipient, or because the user swaps a larger amount than needed and intends to \u201csweep\u201d the remainder to themselves at the end of the UniversalRouter call. And there is no shortage of scenarios in which an untrusted recipient may be called (\u2026). Ethereum DEX Grants $3 Million In Bug Bounty In December 2022, Uniswap launched the Universal Router as part of their new NFT compatibility. At that time, Uniswap Labs announced a $3 million bounty program. Dedaub was granted this amount for their bug report on the new component. The firm celebrated the reward and the fact that a bad actor never exploited the vulnerability. In addition, the security firm was \u201cthe only bug report that Uniswap acted upon.\u201d\u00a0 2022 was a troublesome year for crypto and risk-on assets, while macroeconomic forces played against the nascent sector. Users experienced hurdles beyond declining prices as hackers and bad actors took billions from the industry.\u00a0 Data from on-chain analytics firm Chainalysis claims that bad actors have received over $26 billion in cryptocurrency from 2017 to 2021 alone. It remains to be seen if 2023 will extend or mitigate this trend.\u00a0 Related Reading: Bitcoin, Ethereum Lack Volumes To Justify Caps, Says Santiment As of this writing, UNI&#8217;s price trades at $5.70 with sideways movement on the daily chart.\u00a0<\/p>\n","protected":false},"author":535,"featured_media":459569,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[83446],"tags":[82849,80532,82852],"class_list":["post-514597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uniswap","tag-uni","tag-uniswap","tag-uniusdt"],"acf":[],"yoast_head":"\n<title>How Uniswap Was Saved From Critical Vulnerability By This Security Firm<\/title>\n<meta name=\"description\" content=\"Security firm Dedaub discovered and disclosed a critical vulnerability on the popular Ethereum decentralized exchange Uniswap. 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His journey began with translating articles for various crypto news outlets, a role he took on with zeal. In 2018, amidst a challenging market, he embraced his first writing assignment, demonstrating his unwavering commitment to the nascent industry and the promise of change it bears for many people worldwide. In March 2021, he joined the prestigious crypto news outlet NewsBTC and Bitcoinist, where he not only reported on the latest crypto news but also had the privilege of interviewing some of the industry's most influential figures. A year later, his dedication and hard work were recognized, and he was promoted to Managing Editor, a position he currently holds with pride. He believes in honesty, good communication, hard work, and the power of cryptocurrency and its potential to transform people's lives, especially those alienated by the legacy financial system. Born in 1992 in Venezuela, Reynaldo is familiar with how governments and central banks can negatively affect people, their everyday lives, and their futures by creating inflation and erasing their hopes for a better future. Thus, like many Venezuelans, he embraced this new technology to help him and his family navigate difficult times. In another life, Reynaldo would have pursued a career as an investigator, most likely tracking down the origins of the Cyberpunk movement with the publication of William Gibson\u2019s \u2018Neuromancer.\u2019 The intersection between fiction and reality, with the materialization of Bitcoin in 2009, would have allowed him to dive deep into the crypto sphere as something more than a financial phenomenon but also a cultural shift in society that was brewing since the XX century, and maybe even sooner, in the XIX century with the publication of Henry David Thoreau\u2019s \u2018Civil Disobedience.\u2019 But that\u2019s for another life. In this one, Reynaldo has been trading to improve his trading skills. Since 2023, he has been trying to learn Python to create successful strategies and find ways to execute them. It is a difficult task, which continues to keep him busy today and will most likely continue to keep him busy in the near and long term. In his free time, he enjoys lifting heavy objects, reading, watching movies, and listening to his favorite music. Some of his favorite authors are Walt Whitman, William Faulkner, Allen Ginsberg, James Baldwin, Raymond Carver, Ray Bradbury, George Orwell, Mario Vargas Llosa, Reinaldo Arenas, Rafael Cadenas, and many others. Lately, he has been primarily interested in reading about dystopic societies, a topic that deeply resonates with the crypto industry. Since 2023, he has lived in Spain with his wife. He loves the weather, the food, and the people and their culture. They both expect to travel much more within the country they now call home and beyond its border. He hopes to retire with his wife, maybe in a quiet place near a beach, but most likely in a city close to a library and a university with his kids and, hopefully, grandkids.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/reynaldo-mrquez-2ab111190\/\",\"https:\/\/x.com\/rl_m\"],\"url\":\"https:\/\/wncen.com\/author\/reynaldomarquez\/\"}]}<\/script>\n","yoast_head_json":{"title":"How Uniswap Was Saved From Critical Vulnerability By This Security Firm","description":"Security firm Dedaub discovered and disclosed a critical vulnerability on the popular Ethereum decentralized exchange Uniswap. 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His journey began with translating articles for various crypto news outlets, a role he took on with zeal. In 2018, amidst a challenging market, he embraced his first writing assignment, demonstrating his unwavering commitment to the nascent industry and the promise of change it bears for many people worldwide. In March 2021, he joined the prestigious crypto news outlet NewsBTC and Bitcoinist, where he not only reported on the latest crypto news but also had the privilege of interviewing some of the industry's most influential figures. A year later, his dedication and hard work were recognized, and he was promoted to Managing Editor, a position he currently holds with pride. He believes in honesty, good communication, hard work, and the power of cryptocurrency and its potential to transform people's lives, especially those alienated by the legacy financial system. Born in 1992 in Venezuela, Reynaldo is familiar with how governments and central banks can negatively affect people, their everyday lives, and their futures by creating inflation and erasing their hopes for a better future. Thus, like many Venezuelans, he embraced this new technology to help him and his family navigate difficult times. In another life, Reynaldo would have pursued a career as an investigator, most likely tracking down the origins of the Cyberpunk movement with the publication of William Gibson\u2019s \u2018Neuromancer.\u2019 The intersection between fiction and reality, with the materialization of Bitcoin in 2009, would have allowed him to dive deep into the crypto sphere as something more than a financial phenomenon but also a cultural shift in society that was brewing since the XX century, and maybe even sooner, in the XIX century with the publication of Henry David Thoreau\u2019s \u2018Civil Disobedience.\u2019 But that\u2019s for another life. In this one, Reynaldo has been trading to improve his trading skills. Since 2023, he has been trying to learn Python to create successful strategies and find ways to execute them. It is a difficult task, which continues to keep him busy today and will most likely continue to keep him busy in the near and long term. In his free time, he enjoys lifting heavy objects, reading, watching movies, and listening to his favorite music. Some of his favorite authors are Walt Whitman, William Faulkner, Allen Ginsberg, James Baldwin, Raymond Carver, Ray Bradbury, George Orwell, Mario Vargas Llosa, Reinaldo Arenas, Rafael Cadenas, and many others. Lately, he has been primarily interested in reading about dystopic societies, a topic that deeply resonates with the crypto industry. Since 2023, he has lived in Spain with his wife. He loves the weather, the food, and the people and their culture. They both expect to travel much more within the country they now call home and beyond its border. He hopes to retire with his wife, maybe in a quiet place near a beach, but most likely in a city close to a library and a university with his kids and, hopefully, grandkids.","sameAs":["https:\/\/www.linkedin.com\/in\/reynaldo-mrquez-2ab111190\/","https:\/\/x.com\/rl_m"],"url":"https:\/\/wncen.com\/author\/reynaldomarquez\/"}]}},"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"How Uniswap Was Saved From Critical Vulnerability By This Security Firm","url":"http:\/\/wncen.com\/news\/uniswap\/uniswap-saved-vulnerability-security-firm\/","mainEntityOfPage":{"@type":"WebPage","@id":"http:\/\/wncen.com\/news\/uniswap\/uniswap-saved-vulnerability-security-firm\/"},"thumbnailUrl":"https:\/\/wncen.com\/wp-content\/uploads\/2021\/03\/Uniswap-UNI24.jpg?resize=200%2C200","image":{"@type":"ImageObject","url":"https:\/\/wncen.com\/wp-content\/uploads\/2021\/03\/Uniswap-UNI24.jpg?fit=704%2C517"},"articleSection":"Uniswap","author":[{"@type":"Person","name":"Reynaldo Marquez"}],"creator":["Reynaldo Marquez"],"publisher":{"@type":"Organization","name":"NewsBTC","logo":"https:\/\/wncen.com\/wp-content\/uploads\/2020\/06\/cropped-cropped-cropped-favicon.png?w=32"},"keywords":["uni","uniswap","uniusdt"],"dateCreated":"2023-01-04T00:00:49Z","datePublished":"2023-01-04T00:00:49Z","dateModified":"2023-03-08T07:26:34Z"},"rendered":"<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"NewsArticle\",\"headline\":\"How Uniswap Was Saved From Critical Vulnerability By This Security Firm\",\"url\":\"http:\\\/\\\/wncen.com\\\/news\\\/uniswap\\\/uniswap-saved-vulnerability-security-firm\\\/\",\"mainEntityOfPage\":{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/wncen.com\\\/news\\\/uniswap\\\/uniswap-saved-vulnerability-security-firm\\\/\"},\"thumbnailUrl\":\"https:\\\/\\\/wncen.com\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/Uniswap-UNI24.jpg?resize=200%2C200\",\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/wncen.com\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/Uniswap-UNI24.jpg?fit=704%2C517\"},\"articleSection\":\"Uniswap\",\"author\":[{\"@type\":\"Person\",\"name\":\"Reynaldo Marquez\"}],\"creator\":[\"Reynaldo Marquez\"],\"publisher\":{\"@type\":\"Organization\",\"name\":\"NewsBTC\",\"logo\":\"https:\\\/\\\/wncen.com\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/cropped-cropped-cropped-favicon.png?w=32\"},\"keywords\":[\"uni\",\"uniswap\",\"uniusdt\"],\"dateCreated\":\"2023-01-04T00:00:49Z\",\"datePublished\":\"2023-01-04T00:00:49Z\",\"dateModified\":\"2023-03-08T07:26:34Z\"}<\/script>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/wncen.com\/p.js"},"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/wncen.com\/wp-content\/uploads\/2021\/03\/Uniswap-UNI24.jpg?fit=704%2C517","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/posts\/514597"}],"collection":[{"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/users\/535"}],"replies":[{"embeddable":true,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/comments?post=514597"}],"version-history":[{"count":0,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/posts\/514597\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/media\/459569"}],"wp:attachment":[{"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/media?parent=514597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/categories?post=514597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wncen.com\/wp-json\/wp\/v2\/tags?post=514597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}